40344000523 has 2 divisors, whose sum is σ = 40344000524. Its totient is φ = 40344000522.

The previous prime is 40344000509. The next prime is 40344000527. The reversal of 40344000523 is 32500044304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40344000523 - 2⁵ = 40344000491 is a prime.

It is not a weakly prime, because it can be changed into another prime (40344000527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20172000261 + 20172000262.

It is an arithmetic number, because the mean of its divisors is an integer number (20172000262).

Almost surely, 2^40344000523 is an apocalyptic number.

40344000523 is a deficient number, since it is larger than the sum of its proper divisors (1).

40344000523 is an equidigital number, since it uses as much as digits as its factorization.

40344000523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 40344000523 its reverse (32500044304), we get a palindrome (72844044827).

The spelling of 40344000523 in words is "forty billion, three hundred forty-four million, five hundred twenty-three", and thus it is an aban number.